Veterinary Drug Handbook (VDH) is the reference veterinarians turn to when they want an independent source of information on the drugs that are used in veterinary medicine today.


Denotes organisms which survive and persist on or within another living organism. The parasite usually does not harm the animal. The most successful parasites achieve a balance whereby both the parasite and host animal survive. Among the parasites found on or within animals are bacteria, protozoans, fungi, mycoplasmas, rickettsia, and viruses. A specific type of relationship between different organisms, where one organism benefits at the expense of another.

© 2011-2021 Veterinary Terms, Diagnoses and Drug Handbook Online

Wait 20 seconds...!!!